public string Dump()
{
var dump = "Change:\n";
dump += "\tChangeReason: " + ChangeReason.ToString() + " , OwnerId: " + OwnerId + "\n";
dump += "\tOldState: " + UndoObjectState.Dump() + "\n";
dump += "\tNewState: " + RedoObjectState.Dump() + "\n";
return(dump);
}